SiteOne director Doug Black files Form 4 for 8,000-share gift

Rhea-AI Filing Summary

SiteOne Landscape Supply (SITE) CEO and director Doug Black reported a charitable gift of 8,000 shares of common stock on 11/04/2025 (Form 4, transaction code G) at a stated price of $0. Following the transaction, he reported 485,180 shares held directly, plus indirect holdings of 3,591 shares by a family trust and 93,675 shares by a SLAT.

Insider Trade Summary

8,000 shares gifted

Mixed 3 txns

Insider BLACK DOUG

Role CEO

Type	Security	Shares	Price	Value
Gift	Common Stock	8,000	$0.00	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 485,180 shares (Direct); Common Stock — 3,591 shares (Indirect, By Family Trust)

Footnotes (1)

1. Charitable gift. Reflects indirect ownership by a family trust for which the Reporting Person's spouse serves as trustee.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

BLACK DOUG

(Last) (First) (Middle)

MANSELL OVERLOOK

300 COLONIAL CENTER PARKWAY, SUITE 600

(Street)

ROSWELL GA 30076

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SiteOne Landscape Supply, Inc. [ SITE ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CEO

3. Date of Earliest Transaction (Month/Day/Year)
11/04/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/04/2025		G(1)		8,000	D	$0	485,180	D
Common Stock								3,591	I	By Family Trust(2)
Common Stock								93,675	I	By SLAT

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Charitable gift.

2. Reflects indirect ownership by a family trust for which the Reporting Person's spouse serves as trustee.

	/s/ John Guthrie, attorney-in-fact for Doug Black	11/06/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did SITE (SiteOne Landscape Supply) disclose in this Form 4?

CEO and director Doug Black reported a charitable gift of 8,000 shares on 11/04/2025 (code G) at a stated price of $0.

How many SITE shares does Doug Black hold after the transaction?

He reported 485,180 shares directly, plus 3,591 shares held indirectly by a family trust and 93,675 shares held indirectly by a SLAT.

What does transaction code G mean on a Form 4?

Code G indicates a bona fide gift, which this filing labels as a charitable gift.

Who signed the SITE Form 4 filing?

It was signed by /s/ John Guthrie, attorney-in-fact for Doug Black, on 11/06/2025.

What roles does Doug Black hold at SITE?

He is listed as both a Director and an Officer with the title CEO.

How are the indirect SITE holdings structured?

Indirect holdings include 3,591 shares by a family trust (spouse as trustee) and 93,675 shares by a SLAT.